ABAP Select data from SAP table RPLEHAD0 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPLEHAD0 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to RPLEHAD0. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the RPLEHAD0 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_RPLEHAD0 TYPE STANDARD TABLE OF RPLEHAD0,
      WA_RPLEHAD0 TYPE RPLEHAD0,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <RPLEHAD0> TYPE RPLEHAD0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPLEHAD0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPLEHAD0
  INTO TABLE IT_RPLEHAD0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPLEHAD0
*  INTO TABLE @DATA(IT_RPLEHAD02).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_RPLEHAD0 INDEX 1 INTO DATA(WA_RPLEHAD02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPLEHAD0 ASSIGNING <RPLEHAD0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPLEHAD0>-AG_TYP = 1.
<RPLEHAD0>-DAY = 1.
<RPLEHAD0>-PROT = 1.
<RPLEHAD0>-YEAR = 1.
<RPLEHAD0>-MERKAG = 1.

ENDLOOP.

LOOP AT IT_RPLEHAD0 INTO WA_RPLEHAD0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPLEHAD0-MERKZU, sy-vline,
  WA_RPLEHAD0-ANZ_ART, sy-vline,
  WA_RPLEHAD0-LISTE, sy-vline,
  WA_RPLEHAD0-FORML, sy-vline,
  WA_RPLEHAD0-MTTLG, sy-vline,
  WA_RPLEHAD0-FORMM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPLEHAD0 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_RPLEHAD0 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_RPLEHAD0 INTO WA_RPLEHAD0.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit GJAHR, internal->external for field YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RPLEHAD0-YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPLEHAD0-YEAR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RPLEHAD0_STR, 
AG_TYP TYPE STRING,
DAY TYPE STRING,
PROT TYPE STRING,
YEAR TYPE STRING,
MERKAG TYPE STRING,
MERKZU TYPE STRING,
ANZ_ART TYPE STRING,
LISTE TYPE STRING,
FORML TYPE STRING,
MTTLG TYPE STRING,
FORMM TYPE STRING,
SELBSTZ TYPE STRING,
DECKB TYPE STRING,
ABSND TYPE STRING,
LIRND TYPE STRING,
KKZFG TYPE STRING,
LGAMO TYPE STRING,
LGASO TYPE STRING,
LGAVJ TYPE STRING,
LGADJ TYPE STRING,
LGAHJ TYPE STRING,
LGAJL TYPE STRING,
BLTKZ TYPE STRING,
ENZALT TYPE STRING,
ENZGEH TYPE STRING,
ENZPNK TYPE STRING,
ENZSOZ TYPE STRING,
ENZTGE TYPE STRING,
FRMK TYPE STRING,
KAPPE TYPE STRING,
PRIVAT TYPE STRING,
6PRO TYPE STRING,
CSV TYPE STRING,
PATH TYPE STRING,
ANART TYPE STRING,
ORDAG TYPE STRING,
NO_CHAIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPLEHAD0_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_RPLEHAD0_STR-AG_TYP sy-vline 
WA_RPLEHAD0_STR-DAY sy-vline 
WA_RPLEHAD0_STR-PROT sy-vline 
WA_RPLEHAD0_STR-YEAR sy-vline 
WA_RPLEHAD0_STR-MERKAG sy-vline 
WA_RPLEHAD0_STR-MERKZU sy-vline 
WA_RPLEHAD0_STR-ANZ_ART sy-vline 
WA_RPLEHAD0_STR-LISTE sy-vline 
WA_RPLEHAD0_STR-FORML sy-vline 
WA_RPLEHAD0_STR-MTTLG sy-vline 
WA_RPLEHAD0_STR-FORMM sy-vline 
WA_RPLEHAD0_STR-SELBSTZ sy-vline 
WA_RPLEHAD0_STR-DECKB sy-vline 
WA_RPLEHAD0_STR-ABSND sy-vline 
WA_RPLEHAD0_STR-LIRND sy-vline 
WA_RPLEHAD0_STR-KKZFG sy-vline 
WA_RPLEHAD0_STR-LGAMO sy-vline 
WA_RPLEHAD0_STR-LGASO sy-vline 
WA_RPLEHAD0_STR-LGAVJ sy-vline 
WA_RPLEHAD0_STR-LGADJ sy-vline 
WA_RPLEHAD0_STR-LGAHJ sy-vline 
WA_RPLEHAD0_STR-LGAJL sy-vline 
WA_RPLEHAD0_STR-BLTKZ sy-vline 
WA_RPLEHAD0_STR-ENZALT sy-vline 
WA_RPLEHAD0_STR-ENZGEH sy-vline 
WA_RPLEHAD0_STR-ENZPNK sy-vline 
WA_RPLEHAD0_STR-ENZSOZ sy-vline 
WA_RPLEHAD0_STR-ENZTGE sy-vline 
WA_RPLEHAD0_STR-FRMK sy-vline 
WA_RPLEHAD0_STR-KAPPE sy-vline 
WA_RPLEHAD0_STR-PRIVAT sy-vline 
WA_RPLEHAD0_STR-6PRO sy-vline 
WA_RPLEHAD0_STR-CSV sy-vline 
WA_RPLEHAD0_STR-PATH sy-vline 
WA_RPLEHAD0_STR-ANART sy-vline 
WA_RPLEHAD0_STR-ORDAG sy-vline 
WA_RPLEHAD0_STR-NO_CHAIN sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.